Frame: The right side cowl/shield must be removed to see the frame serial number. It is stamped on the main tubular part of the frame under the gas tank. The number will start with a prefix (ex. 150LI) which denotes the model, then a star and a 6 digit number with a star at the end which denotes the year. A typical frame number may look like this: 150LI*012345*

Engine: Look on the engine casting to see the engine serial number. It is stamped on the cast aluminum engine case near the gear change linkage and clutch arm. If you are unsure where the clutch arm is, pull the clutch lever on the handlebars and you will see it move. The number will start with a prefix (ex. 150LI) which denotes the model, then a star and a 6 digit number with a star at the end which denotes the year. A typical engine number may look like this: 150LI*012345*